CN2708857Y - Regulatable bone fracture replacement external fixator - Google Patents
Regulatable bone fracture replacement external fixator Download PDFInfo
- Publication number
- CN2708857Y CN2708857Y CN 200420064654 CN200420064654U CN2708857Y CN 2708857 Y CN2708857 Y CN 2708857Y CN 200420064654 CN200420064654 CN 200420064654 CN 200420064654 U CN200420064654 U CN 200420064654U CN 2708857 Y CN2708857 Y CN 2708857Y
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Abstract
The utility model discloses an adjustable bone fracture replacement external fixer. A first vertical adjustable screw is connected with a vertical adjustable arm and a second vertical adjustable arm. One end of the second vertical adjustable screw is respectively connected with the two vertical adjustable arms, and the other end is respectively connected with one end of a coupler. Two horizontal adjustable screws respectively penetrate through two horizontal adjustable arms to be connected with both ends of the coupler. One end of each vertical adjustable arm and one end of each horizontal adjustable arm are respectively provided with through holes which permit screw thread needles to penetrate through and are matched with the diameters of the screw thread needles. The utility model reduces the difficulty that a doctor penetrates the screw thread needles in a clinical operation, and the doctor can conveniently and freely adjust the positions of screw thread needles. Therefore, the doctor can conveniently install the fixer after the screw thread needles are penetrated in the operation. The utility model shortens operation time and makes the fixation reliable, and the external force on a fracture site is more accurate. Through the vertical adjustment or the horizontal adjustment of the fracture site on a backbone, the utility model provides a new tool for the doctor to perform the bone setting operation.
Description
Technical field
This utility model relates to orthopaedic medical treatment machinery, particularly a kind of use resetting and fixed adjustable external immobilizer for fracture restitution after the dislocation of human body long bone shaft fracture.
Background technology
Because of reasons such as wound cause the dislocation of human body long bone shaft fracture, traditional external fixation generally adopts behind orthopedic operation, two entry points are selected in appropriate location near the fracture site upper/lower terminal on key longitudinal axis, traverse two screw needles, and load onto exterior fixation bracket and carry out external fixation.This exterior fixation bracket (see figure 6) is provided with 4 regulating arms, the same end of each regulating arm is respectively equipped with the hole that screw needle is installed, and 4 holes are on same straight line, after loading onto exterior fixation bracket, distance between the regulating arm and position are nonadjustable, the doctor can only be according to the physical location of 4 pins, regulate the distance between the regulating arm one by one, install exterior fixation bracket, this exterior fixation bracket, can not adapt to the clinician when traversing four pins, actual being difficult to all traversed pin on key longitudinal axis, has the situation of a little error, load onto support after, can not carry out the adjusting of vertical and horizontal direction power to fracture site, with the treatment function of performance support.Simultaneously, support is adjusted complicated, inconvenient operation, and operating time is long.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of easy to adjust, and the adjustable external immobilizer for fracture restitution that mutual distance and angle all can freely be adjusted between four regulating arms.
The technical solution adopted in the utility model is: a kind of adjustable external immobilizer for fracture restitution, include regulating arm and the adjustment screw rod that is connected each regulating arm, described adjustable external immobilizer for fracture restitution also comprises U type coupling, described regulating arm comprises two horizontal adjustment arm and two vertical adjustment arm, described adjustment screw rod comprises the first vertical screw rod of adjusting, two second vertical screw rod and two horizontal adjustment screw rods adjusted, the described first vertical screw rod of adjusting connects first vertical adjustment arm and second vertical adjustment arm, described second a vertical end of adjusting screw rod links to each other with two vertical adjustment arm respectively, the other end links to each other with coupling one end respectively, the two ends that two horizontal adjustment screw rod one ends pass two horizontal adjustment arm and coupling respectively are connected, and an end of two vertical adjustment arm and two horizontal adjustment arm is respectively arranged with the through hole that can cross and be complementary with described screw needle diameter for screw needle.
Further, described horizontal adjustment arm is between the U-shaped two ends of coupling.
Further, in the outside of described through hole the lock-screw that is used for fixing screw needle is installed.
Adopt the technical solution of the utility model, because horizontal adjustment arm is passed the two ends of (going into) coupling, the supporting-point of horizontal adjustment screw rod in coupling is two, limited the not independently swing of a plurality of directions of horizontal adjustment arm, and adopt two groups of couplings to connect, by the free adjustment of position between each regulating arm on the exterior fixation bracket, be very easy to and after doctor's operation is threaded a needle this holder be installed, shortened operating time and made and fixedly become reliable, more accurate to the fracture site externally applied forces, can carry out the adjusting of horizontal or vertical direction power to the shaft fracture position.
Description of drawings
Fig. 1 is the application sketch map of the adjustable external immobilizer for fracture restitution of this utility model;
Fig. 2 is the C-C profile of Fig. 1;
Fig. 3 is the longitudinal sectional view of adjustable external immobilizer for fracture restitution shown in Figure 1;
Fig. 4 is the B-B profile of Fig. 3;
Fig. 5 is the A-A profile of Fig. 3;
Fig. 6 is a fixing rack structure sketch map in the prior art.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
Extremely shown in Figure 6 as Fig. 2, the adjustable external immobilizer for fracture restitution of this utility model comprises that vertical adjustment screw rod 1, two are vertically adjusted 2, two horizontal adjustment screw rods of screw rod 3, two U-shaped couplings 4, vertical adjustment arm 5, vertical adjustment arm 6, two horizontal adjustment arm 7, lock-screw 8 and jump rings 9 are formed.The vertical sliding bearing of adjusting screw rod 1 one ends by vertical adjustment arm 6, and jump ring 9 anti-avulsions of packing into, the other end and vertical adjustment arm 5 are threaded, two vertical screw rod 2 one ends of adjusting are connected with vertical adjustment arm 5,6 by screw thread respectively, the other end is respectively charged in the vertical sliding bearing of two couplings 4, and tail end forged slightly to snap onto does not break away from the coupling 4 but can rotate freely; Two horizontal adjustment screw rods 3 two ends optical axis end to end are respectively charged in the horizontal slip bearing of two couplings, and tail end forged slightly to snap onto do not break away from the coupling 4 but can rotate freely, the stage casing threaded portion connects with the screw of an end of horizontal adjustment arm 7, one end of each horizontal adjustment arm and vertical adjustment arm is respectively arranged with the through hole A that is complementary with Kirschner wire or screw needle diameter, B, C and D, and A, B, C and D four holes are on same straight line, four screw needle A ', B ' and C ', D ' can be by the respective through hole A on each regulating arm, B and C, D is connected with holder, distance between screw needle A ' and the D ' and angle are regulated by vertical adjustment screw rod 1, at three dimensions 4 degree of freedom are arranged respectively; Distance and angle between relative A ' of screw needle B ', C ' and the D ', carry out free adjustment by vertical adjustment screw rod 2 and horizontal adjustment screw rod 3, at three dimensions 6 degree of freedom are arranged, be separately installed with the lock-screw 8 that is used for the binding thread pin at axis middle part perpendicular to the through hole of three regulating arms.
Existing accompanying drawings using method of the present utility model:
(1) behind doctor's orthopedic operation, each symmetry of two parts up and down near fracture is traversed two screw needle A ' and D ' on key longitudinal axis earlier, and B ' and C ';
(2) according to the physical location of 4 screw needles, adjust the distance between 5,6 and two horizontal adjustment arm 3 of this utility model two vertical adjustment arm, again four regulating arms on this utility model holder are installed to described pin A ', B ', C ' and D ' by each respective through hole A, B, C and D and stretch out on the external end;
(3) suitably adjust the vertical screw rod 1 of adjusting,, make screw needle A ' and D ' with respect to through hole A and D fixed-site and between screw needle A ' and D ', certain pressure or pull strength are arranged to change distance and the angle between the vertical adjustment arm 5 and 6; Suitably regulate the two vertical screw rods 2 of adjusting to change vertical adjustment arm 5 and 6 with respect to vertical dimension and angle between two horizontal adjustment arm 7, suitably adjust two horizontal adjustment screw rods 3, to regulate screw needle B ' and C ' horizontal range and angle with respect to A ' and C ', make screw needle B ' and C ' with respect between A ' and the D ', and pressure or the pull strength of fixing and between four pins, have certain vertical direction and horizontal direction with respect to each lead to the hole site.
(4) suitably adjust lock-screw 8, four screw needles are fixed.
(5) load onto and adjust the adjustable external immobilizer for fracture restitution of another one at opposite side by same step.
(6) after the union of fracture, unload external fixator, remove screw needle.
Adopt adjustable external immobilizer for fracture restitution of the present utility model, reduce doctor's clinical operation and traversed the difficulty that penetrates screw needle, both made four pins that traverse exist not parallel or not on the same plane of key longitudinal axis, position between each screw needle of free adjustment easily, be very easy to and after doctor's operation is threaded a needle this holder be installed, shortened operating time, and make and fixedly become reliable, more accurate to the fracture site externally applied forces, by the adjusting of horizontal or vertical direction power is carried out at the shaft fracture position, be doctor's bone-correcting skill, limb lengthening, the reduction of the fracture etc. provide a kind of new instrument.This adjustable external immobilizer for fracture restitution adopts rustless steel and copper or aluminum manufacturing, has intensity height and material and gently reaches characteristics such as non-corrosive.
It should be noted that at last: above embodiment only in order to the explanation this utility model and and the described technical scheme of unrestricted this utility model.Therefore, although this description has been described in detail this utility model with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement this utility model, and all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. adjustable external immobilizer for fracture restitution, include regulating arm and the adjustment screw rod that is connected each regulating arm, it is characterized in that: also comprise U type coupling, described regulating arm comprises two horizontal adjustment arm and two vertical adjustment arm, described adjustment screw rod comprises the first vertical screw rod of adjusting, two second vertical screw rod and two horizontal adjustment screw rods adjusted, the described first vertical screw rod of adjusting connects first vertical adjustment arm and second vertical adjustment arm, described second a vertical end of adjusting screw rod links to each other with two vertical adjustment arm respectively, the other end links to each other with coupling one end respectively, the two ends that two horizontal adjustment screw rods pass two horizontal adjustment arm and coupling respectively are connected, and an end of two vertical adjustment arm and two horizontal adjustment arm is respectively arranged with the through hole that can pass and be complementary with described screw needle diameter for screw needle.
2. adjustable external immobilizer for fracture restitution according to claim 1 is characterized in that: two horizontal adjustment screw rods and described two the second vertical screw rods of adjusting adopt sliding bearing to cooperate with described coupling.
3. adjustable external immobilizer for fracture restitution according to claim 1 is characterized in that: described horizontal adjustment arm is between the U-shaped two ends of coupling.
4. according to claim 1,2 or 3 described adjustable external immobilizer for fracture restitution, it is characterized in that: the lock-screw that is used for fixing screw needle is installed in the outside of described through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064654 CN2708857Y (en) | 2004-06-01 | 2004-06-01 | Regulatable bone fracture replacement external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420064654 CN2708857Y (en) | 2004-06-01 | 2004-06-01 | Regulatable bone fracture replacement external fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2708857Y true CN2708857Y (en) | 2005-07-13 |
Family
ID=34852191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420064654 Expired - Fee Related CN2708857Y (en) | 2004-06-01 | 2004-06-01 | Regulatable bone fracture replacement external fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2708857Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551832A (en) * | 2011-12-28 | 2012-07-11 | 任小宝 | Minimal invasion heel tendon fixing anastomat |
-
2004
- 2004-06-01 CN CN 200420064654 patent/CN2708857Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551832A (en) * | 2011-12-28 | 2012-07-11 | 任小宝 | Minimal invasion heel tendon fixing anastomat |
| CN102551832B (en) * | 2011-12-28 | 2014-02-12 | 任小宝 | Minimal invasion heel tendon fixing anastomat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050713 Termination date: 20120601 |